Lock



2 SHEETS-SHEET l.

F. W. ANDREW.

LOCK.

Patented Dec. 12,1922.

APPLICATION FILED DEC. 13, |920.

FL w. ANDREW.

LOCK.

APPLICATION FILED Dic. la, 1920.

- Patented De.12,1922.'

2 SHEETS-SHEEI 2.

HHH! um .IIIII III'II/ IIIIIIIIIIILL Patented Dec. 12, 1922.

UNITED STATES riennneicx W. sneeuw-or BSQKLYN, NEWYK.

"Loek,l j

Appiicationniea December 13,1920. serial N0.`4 3o,114'o;" f p l To aZZywLoimvIt may concern.' y

it known that I, 'FREDERICK lV. AN- DREW, a citizenof'. the United-States, and a resident et the City lof New" York, borough ofBrooklyn, county of Kings, vand State 'of New York, have invented certainfnew and* usetul Improvements in Locks', of Awhich the following is a specification. My invention relates to locks, and its particular object is toV provide a' bnr'glarproof tion embodies certain features of novelty which impart to it decided advantages over piiorstructnres, as will appear 'from a de. 'tailed description ofthe lock shown in ther accompanying drawings. r

One Vof the features ot my new lock is a locking member in the form of a. disk which is preferably Banged and made of hardened steel. When this disk is in locking' position,v

the projecting y portion thereofinterlocks with ay shoulder on the keeper secured to the door casing. When the disk is in normal or or unlockingposition, it is housed entirely `within the casing of the lock.

The locking disk operated `from one side of the door-by a knob or like member 'and from the other lside of the door byy a key-controlled lock of any approved construction' (such as `any type oi.v cylinder).

Provision is made whereby the locking disk is positively locked 1n actuated position, sov

that it cannot be operated by merely turning the knob. It is first necessary to manipulate the knob in a prescribed manner to unlock the disk for rotation. This will be specifically referred to later on,

ln the accompanyingl drawings- Fig. l shows a lock embodying my invention as applied toa door;

Fig. 2 is a vertical. cross-section ar'ip'roximately on line Q-Qot- Fig. l;

Fig. 3 is a view taken 'on of Fig. l, looking inthe direction otihc arrows.

Fig. l isa sectional viewapproximatelv on line 4-4 of Fig. 2, showing. the lockingF disk in normal position-Within the casing Fig. 51 is alv view similar to Fig, 4, showing' the locking disk inl locking position;

the broken `line i F is an edge'vievvoflthe ldclk,"a

being. broken away t"0 sho'wfcertain parts' Within the casing;

" Figf' is'ajpei'spectivefview of ,niy'newi locking disk and lFig/Sissi detached view showing the coninectiony betweenl the* locking EdiskI and the disk is ope`r'ated'trorri the outside ofthe' door.

For, the sake of explaining my invention I-ain assuming` Athat'iny nekwlockis v'appliedjj i to vthe entrance door off a dwell-ingfioranf" apartment, althoughit 'may 'be v used on inside doors'and elsewhere; Inf'thedrawings'the door is represented -by/A andv the ,casingioitf door-jamb'byB. The sideofy the door shown*` in Fig. 1 is supposed'to' :beithef'insideg The outer casing C-lof thelock is,"ronghly speak ing, circular in shape, except that pit h asia f straight edge l `adapted to lie `sul?stantially lockis in position.` The casingCxinaycon veniently be formed of a back-plate2i and a box-like section 3, thesetwo parts-hitting: to-

cast offa suitable metal, such as bronze, oifthe As seen from Figsfl and 5,' the-*disk pra-cl ticallyillsfthe 'inside o-the' casing.y This permitsk a large heavy 'locking'.d-isk'to* be" housed within' ai casing` not yiiiuch@largei,

than the disk itself, thus''producing` a lock of compact proportions, and yetjonejwhich vcontains a locking member of-:great strength.` The disk 5 is preferably'formed with a latl .eral flange 6,- `whichincreases; its strength.

` flush with the edge of the fdoorWhenthe' gethei `to 'forma closed casi-ng. Inpracticd'; l the parts l and 3 'of the casing are preferably"l The peripheral flange 6 projects `axially from' oneside only 'of the body ofthe disk, so that -the disk lmay be formed` from a cut-I punclii'ng. VA., segment of the diskv is cut away to provide an edge 75"(see' Fig. K7), which lies substantiallyflush `with the edge of the casing whenrthe *disk is in normal.

or.-'unlockingposition, as best shown in Fig.'

4. The" "edg-fefls ot .the casing-*is provided with `a flange-shaped `slotor opening 8 (see Fig.V 6) oi y substantiallythe saine outline asv Y the 'lange-shapededge.othe diskr.

The locking disk 5 is adapted to be turned from the inside of the door by any suitable hand-operated member, such as a knob 9, which is secured to" the Vouter "end of the shaft 10. I may here state, that when I use the term knob in the claims, I do so for conveniently describing anyv suitable part projecting from the casing to be operated by hand. On the inner end of the shaft 10 is rigidly mounted a connecting piece 11. The disk 5 is provided with an opening 12 of a shape .to receive the connecting piece 11. To permit a slidable movement of the connecting piece 11 without breaking its operative connection with the locking disk 5, --the connecting piece is provided `with. a-pair'of axial flanges 13. Suit.-

able spring means, such as a spring 111 surroundingF 'the-shaft10, normally holds -the connecting piece /11 toward the-disk, as showninFigQ. The coil-spring 141 may be -conveniently located in the lrecess 15 of the casing C, so that one end of the spring bears against thecasingand the other end against disconnecting* piece 11, as best shown in Figs. 2 and 3. When the knob 9 is pulled vout against-the `tension of the spring 14, the

connecting piece 11 is moved away from the locking disk 5,*buft'not suiiiciently to break the operative connection between the connecting piece and the/disk, asmay be seen `'One of the flanges 13 of the connectingv is a key-actuatedelement adapted to engage the connecting' piece 11 and thereby operate the lockingfdisk. It is clear from Fig; 8, that when/'the lug 17 of the element 18 engages 'theflug 16"of the connecting piece 11, the disk 5 isfrotated yinto one position or the other." Thus, 'by operating the lock Y by a ke-y"K,"a:y person canfeithe'r llock or unlock the 'disk 5^'from the outside of the door.

'When'the disk isA inlocking position. as shown in'Fig. 5, a' portion thereof projects beyond thecasing C into a `suitable keeper 19, secured tothe door-j amb B by screws 20 andf21, orl otherwise;Y I prefer to provide the keeper 19 with 'a' shoulder or boss 22, with, whichfthe flange Gof the lockingv disk intel-locks when the disk is in locking'position; "In other words, the flange? hooks over the shoulderQQ of the keener. It will be seenffi'o'm rthis,"that the locking` disk 5" tempt to cut or saw through this disk by the insertion of an instrument into the joint between the lock and the keeper, is practically impossible, for the disk 5, besides being made of hardened steel, has the added strength of the flange 6. The interlocking engagement between the disk 5 and the keeper 19 resists any attempt of a person to force the lock by pressure against the door. The disk 5, it will be observed, is a passive disk. That is to say, it is not springactuated and remains in whatever positionit is turned by hand until moved out of that position by the knob or key. Furthermore, the knobv 9 and key-actuatedmember 18 are in axial alignment with the disk5 and directlyv connected thereto wit-hout any intermediate driving connections such as gears and the like. The direct operative connec-- tions for the disk and the absence vof all. springs' (with the exception of the small` spring 14) render the lock exceedingly simple and compact.

Any suitable means may be provided vfor limiting the rotary movements of the locking disk 5. In the drawings I have shown the disk provided with an arcuate slot 23,V in which engages stop 211 carried by the rasingC. For convenience of manufacture,

the stopl 9A- may be a screw or bolt which necting piece l1, whereby the disk 5 and the knob 9 are normally locked against rotary movement. 'In order, therefore, to turn the` disk 5 by means of the knob 9, it is first necessary to pull the knob out, so as to movev the lug'16 out of the way of the lug 17, as shown in Fig. 6. Then the knob is free to be turned and thel locking disk 5 may be moved intov the desired position. As soon as the knob 9 is released, the spring 10l pushes. the connecting piece 11 inwardly, and thus throws the lug 16 again into `lock, ing relation. to the lug 17.` In order words. the disk 5-s always locked in one position or the other by the lugs 16 and'li', so far asl the knob 9 is concerned, and it is necessary, in the preferred construction shown, to pull the knob out before it can be turned.V This prevents an unauthorized person from unlocking the disk 5 fromthe outside by an' attempt to turn it otherwise than through the element 18.

I may also provide-means for locking the disk 5 in locked position toprevent unlocking thereof by a person having a key` to the lock Y. This locking ofthe disk 5 may be done in several ways, and for the sake of illustrationv I have, siniplyshownfa' setsoreiv" 25, )which in; noijinal'position..d tlie'fdislrzi.y as sh'olWnAL Frm disk is" 1n I looking position ores-*not enga ge' asfshoyv'n iny Fig. 25, f' This lorksuthe dislr .5, against' inoveme'nt into f unloolri slot23. f 'To-'prevent the look oiroular'f'plates "of which three are shoivnl in' Eig12, Thefplates .or dislrs128--arel are* rangedonf'one"` sideof the plate f26rand the di's'llS-:lo thefothenfsidd srnaller disk 29f'is'` arranged betweenfthe disir 18 and the. disks 28 and'operatesrinl'ansopening"ot the plate 26, thereby forming; a. bearing tor the-` disk 18. The disksi28 are 'provided with a slot into Whiohlextends at'pieoe 20 .pro-

which is .part of' the loelr Y as bought inv the store;y may be eutfor` broken oit to the desired length, 'depend-ing -upon the `thiclnness oit4 the door lin which the loolris inserted"` f f l have alreadyreferredftof-the yinterloelre` ingFV engagement between :the 4flanged vdisk and the shoulder 22 of the "keeper'l9..--An additional advantage,` of? this' construction residesinfthefaotfthat the looking'di'slr andl the 'lree'perare interlooked Yagainst lateral' This l,renders my new 'look apy separation. i plioable-toA sliding doorsv by )fastening the casing C to 'one' door and `#the llneeperv 19 rto the 'other door ('in the oase' of doublefsli'dingf doors), lor to the-door'oasing V(inivtheoase Itivill be lseen from tlie be manufactured? at ayoomparatively low oost'` and ivhioh'possesses unusualstrengthy and durabilitvl/Vhilelihaveshoivn and described a specific construction, l would' have it understood that l dofnot 'intend 'to 'be' limited to the detailsI hereinlset forth, Ifor it is obvious that changes and'rnodiiioationsf niayxbe made Without departing from the:

tatably supportedfwithin saidlv easingy and' having a 'segmentgout aivayto orin' 'an edge"- .adapted `to liev substantially `iiushwith saidedge of the-oasingfw-hen the dislr is in vnoir- -nntil the set-screwl 25 is witlidravii from the f `oiithe easing, (5o-operating rparts oonnected` vhavirng'a segmentfout awaygto foriny arredgel adapted to lie substantially flushrwitlipsaid,

ff'egmg that ik have..produoed yay 'very simple and efiioientl look,-W-hich consists 'obutfevvxpartsg/ may"` "provided `with opening,l` a loolringdi inal or unlookingposition,a portion oi said"-4 ydislrfp'rejectingithrouglrj said `opening bef, C l yond saidedge lof theoasing when the disk n and itis desired* `toljoclr the saine (as k'for -tlieni'glf1t), theset.y screwV 25 is given" a `few Aturns vuntil the' innerend thereof engages in the slot v'23 ofthe dislr.,i'

is inlooking",positioinfa knob projeoting=` from oneside ofthe Casing inl axialalignnient f with said 1 dislr tand: .operatively "oon-1 neotedl thereto, key-controlled yfineohanisin p operating said disk ronifthe.' other side of`V`` the oa'singrandfinieans operabletrom the`- rotatably supported Within saidoasiiig andi. l

having a segment out awayfto form anaedgejf adapted toy lie` substantially flush@ With said edgef of they easing'ivlien the *dislr is in`l 1 normal lor unlocking position, a portion-oi,1.`

said disk projecting"throughsaidv opening? bey-ond -said. edgeiiof the"leasingwhen rth'e. disk is in loolnngposition, a knob project'- ingfffrorn vone 'side oi the Casing. for operat-` ing' saidz disk. a ylrey-Controlled, leleinent ar-y ranged-to be'operated ,fromv thefvrothersidef ivith said: disk-Tand rsaid "element-for turn--4 mg vthe dish by means of said element, said oooperating 'parts normally.: loolriiigxthe.

dislragainst movement lby saidilrnob, andv` means for.separati'ngsaid'looeoperating parts` vto permit `.rotation jthe'lrnob:v

'Oi ysaid' looking kdisk by 3511i ,a loolr ,"fa.-oasing having angedgro;`

provided With-an opening, alooking-:disk-v rotatably supported Within said'ieasing" andv edgeoirthe casing When `the:` disk is in nor-, v

mal 'or unlocking` positiomajportion yoil said i disk proieoting "through said opening .bel y y s yoiidsaid edge ofthe .oasingivvhen thefdiSk;

is in 'looking' xpo'sition, a lrnobf projecting Vrornone, side'ofj fthe loasingin axial align- Inent'with said disk for lturning -the samea `key-controlled element arranged in axial; alignment-With said disk and \.-.a` daptedto be'o'peratedfroin theljoth'er side of. the casing, ineinber vat the'oenter olsaid diskA i iorv operatively conneoting'said knob and saidielenient with said disk, said nieinber normally loolringssaid disk` against rotation 1.49 bysaid knob. and means wherebyfanaxial v movement of.y said.'y knob 'y disconnects.y saidf` r meinber from; said element and permits operation'oi said dish byturningqtlie knob.;

14.111" aloolr, laf Casing having j aiiyjedg rotatably supported lWithin Asaid 'oasing` andv havinga segment but away toy form ,an edge adapted tolie; substantially iius'h' Witl i said edge "oil the Casing-1; :when .the fdisk-: i"

1 i 'firstnientionedf'side:oifthe easing ornen-v l Yf iron'i being'turned'k bodily in the door, I interposea square plate.l 26, which fits into a correspondingly shaped# 4"recess 27 in 'thegbaok of plate 2fo`f thelloolr casing.' The plate26;` ofr Course,"needfnotl be f square, asanyfnon-oiroular shape Q'Would bei suiiioient to"1prevent turningthereo Thek eleinen't 1'8"is"oonneote'dto a series oi'f small' iis Y normal or unlocking position, a portion of said disk projecting through said openmg beyond' said edge of the casing when the disk is in locking position,a knob'project- -to :said disk without breaking its operative Y y connection with the disk, a lug connected to the inner end of rsaid shaft, a key-controlled element arranged to be operated from the other side of the casing and provided Witha lug adapted to engage said first-named lug,whereby the operation of lsaid key-controlled` element causes the rotation of. said disk, said co-operating lugs normallylocking -said disk against voperation by said knob, and spring means for normally holding said first-named lug in position to be engaged yby the lug on said element, vsaid lugs being separable by an axial movement of said'shaft to permit rotation of said disk by the knob.

5. In a lock, a easing having an edge proyvided with an opening, a locking disk rotatably supported .within said casing and` having a segment cut away to form anedge.

adapted to lie substantially flush with said edge of the casing when the disk is in normal or-unlockingl position, a portion of said disk projecting through said opening beyond said edge of the casing when the disk is in locking positioina knob projecting from one side of the casing in axial alignment with -said disk for turning the same, a keycontrolled'element arranged in axial alignment with said disk and adapted to be operated from the other side of thel casing, a lugon said element, a member slidably and non-rotatably "connected with said disk at the center thereof, said member vbeing rigidlyconnected with said knob, a lug on said member arranged to be engaged by the lug on said saidV element, whereby the operation 'of said key-controlled element effects the operation of said disk, said cooperating lugs normally locking said disk against movement by said knob, and means for no1'- mally holding said lugs in locking position,`

said member being separable from said element by an axial movement of said knob to permit operation of said disk bythe knob,

in a lock, a casing g an edge provided' with an opening, a locking disk rotatably supported within said'casing and having a segment cut away to form an edge adapted'to lie substantially flush with said edge of the casing when the disk is in normall or unlocking position, a portion of said disk projecting through said opening beyond said edge of the casing whenthe disk is in locking position, a yknob projecting from o ne side of the casing and having a shaft opstop. ,j

"7. Iny a lock, a casing having a straighteratively connected at its inner end with said disk for turning the latter into locking and unlocking positions, said shaftk being axially movable without breaking its operative con-` nections with said disk, a projection connect.

said disk, and spring means for normally holding said edge provided with a flanged slot, a passive locking disk rotatably mounted within said casing, said disk having a peripheral-flange extending axially from one side onlyofthe.

main body, a segment of said disk cut away to form a straight flanged edge at a distance' from the center ofthe disk and adapted -to lie in said flanged slot substantially flushy with said straight edge of the casing when the disk is in unlocking position, a flanged portion of said disk projecting through. said slot beyond said straight edge of the casing.. when the disk is in lockingposition, a keeper having a straightedge adapted-to lie closely parallel to the straight edge of the casing and having a curved shoulder arranged toy interlock with the flange of said disk when the latter is yin locking position, a shaft projecting from one side ofthe casing in axial yalignment with said disk and operatively connected thereto, a knob at the outer end.

of said shaft, and key-controlled means also 'in vaxial aligmnent with saiddisk for operating the same from the other side of thecasing.

8. In a lock, a casing having aistraight edge provided with a flanged slot, a passive; metal disk rotatably mounted within saidk casing and having a non-circular hole at the y center, the metal of said disk being bent laterally at one side of the periphery to form a flange, a segmentof said disk being cut awayy to form a straight `ilangededge at a distance from thecenter of the disk and adapted to lie in said flanged 'slot substantially'flush with said straight edge of the casing when the disk is iny unlocking position` a flanged portion of said disk projecting through saidl slotbeyond said straight edge of the casing when the disk is in locking position, a keeper having a straight edge adapted to lie closely parallel to the straight edge ofthe casing and having a curved shoulder arranged to projection in the path offsaid' interlock with the flange of said disk when the latter is in locking position, amember engaging in the center holeof said disk, a knob at one side of the casing'in axial alignment with said disk and having a shaft connected to said member, and key-contrelled` means also in axial alignment with said disk for operating the disk from the other side of the casing.

9. In a lock, a flat and substantially circular casing having a straight edge provided With an opening, said casing forming a shallow and substantially circular chamber, a passive locking disk rotatably mounted Within said chamber and practically filling the i same, said disk having a segment cut away to provide a straightA edge, whereby saidv from the other side of the casing,and meansl projecting out of the casing on the `same side as said shaft for engaging said disk and thereby locking the same in locking position j against operation by said key-controlled means. y v

1.0. In a lock, a rotatable locking disk having an arcuate slot, a knob forturning said l disk into locking and unlocking positions, a xed stop arranged to engage "the ends of' said slot tovlimit the rotary movements of stop arranged vto engage one end of said slot Wheny the disk is vin locking position and thereby-lock said disk in thatposition, and t f I means for operating said'inovablestop.

11.` In a lock, a casing, a rotatable locking disk Within said easing, ya portion of said Hdisk being adapted lto project' outof the casing- When the disk is in locking position, a

Iixed plate, a rotatable element mounted on said plate in axial alignment With' said disk,

a knob projectingfrom one lside of the cas-.y if

ing in axial alignment vvitli said disk for operating the same, a key-actuated member ,ar-f ranged to be operated from the other side of io4 i the casing and connected with said element,

said cooperating'parts normally looking said disk against l operation by said knob, and i j" l means for rendering said parts inoperative disk by saidy knob:

to permit rotation of said FREDERICK W. ANDREW.

3 0 J i the disk in opposite directions, amovable 

